Rotors for electrical machines
US11152826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2018 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jan 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electrical machine comprises a rotor body having an external, axially extending magnet receiving surface for receiving at least one magnet thereon, and a flange mounting portion at at least one axial end of the magnet receiving surface. The flange mounting portion has a smaller external dimension (D1) than an external dimension (D2) of the magnet receiving surface so as to form a shoulder between the magnet receiving surface and the flange mounting portion. A magnet retaining flange is mounted over the flange mounting portion of the rotor body and located against the shoulder. The magnet retaining flange is retained against the shoulder by at least one lip of the flange mounting portion of the rotor body which extends radially outwardly over a radially inner portion of the magnet retaining flange. The lip by deforming an end face of the flange mounting portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.